CN108956148A - Oil system is for oil return matching test device and method - Google Patents
Oil system is for oil return matching test device and method Download PDFInfo
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- CN108956148A CN108956148A CN201710351464.0A CN201710351464A CN108956148A CN 108956148 A CN108956148 A CN 108956148A CN 201710351464 A CN201710351464 A CN 201710351464A CN 108956148 A CN108956148 A CN 108956148A
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- oil
- simulation
- bearing bore
- oil return
- simulation bearing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
A kind of oil system is for oil return matching test device, it is characterized in that, the oil system includes: that monitoring system, number adopt control system, dragging system, oil pump, simulation oil return system, simulation bearing bore, flow distributing system, air supply system, temperature control fuel tank and auxiliary piping for oil return matching test device；Wherein the number adopts control system and acquires and control correlation test parameter；The dragging system drives the oil pump to rotate, and lubricating oil is entered the simulation bearing bore by the flow distributing system after temperature control fuel tank extraction, takes out described time oil tank by the oil pump oil return grade by the simulation oil return system by the oil pump booster stage；The air supply system is connect with the simulation bearing bore, automatically adjusts air demand by the pressure value of acquisition setting.A kind of oil system is also provided for oil return matching test method.
Description
Technical field
The present invention relates to a kind of aero gas turbine engine oil systems for oil return matching test device and method, tool
Body is related to a kind of can be used for oil system for oil return matching correct and for the experimental rig and method of oil return fault simulation.
Background technique
Oil system is the important component of engine, and can be related to engine for oil return matching properties normal work
Make.As oil pump develops to small size, high efficiency direction, the oil return capacity reserve factor of available engine oil system (is returned
The ratio of oily ability and fuel supply flow rate) it is lower and lower, the oil return capacity reserve factor of new R&D motives only has 3 or so at this stage.
In the working environment of engine, the oil return operating condition of oil system be it is extremely complex, can not consider completely in the design true
Oil return operating condition, need to carry out oil system for oil return match test.Currently, Aero-Engine Lubrication System is tested for oil return
The pertinent literature that method foreign countries do not publish, it is domestic existing relatively simple for oil return matching test method, i.e., using simple
Cavity simulates bearing bore, is connect by major diameter metal hose with scavenge oil pump, verify scavenge oil pump to the suction capactity of pure lubricating oil with
And in high dummy status oil system for oil return matching properties.It is such not have consideration oil return for oil return matching test method
The function that the factors such as pipeline, bearing bore chamber pressure influence oil return.Therefore carry out consider the true oil return operating condition of engine for oil return
Match test is, it can be achieved that match fault location for oil return to engine oil system design verification and oil system.
Summary of the invention
The oil system that the object of the present invention is to provide a kind of structures simply, measurement is easy to operate is for oil return match test side
Method and device.Based on the above reasons, a kind of oil system is provided for oil return matching test method, can comprehensively consider bearing bore oil return
The factors such as the mild chamber pressure of structure (until hydraulic fluid port, bearing bore cavity body structure), oil return line, bearing bore chamber are to oil system for oil return
Matched influence.
The present invention provides a kind of oil system for oil return matching test device, comprising: monitoring system, number adopt control system,
Dragging system, oil pump, simulation oil return system, simulation bearing bore, flow distributing system, air supply system, temperature control fuel tank and auxiliary
Help pipeline；Wherein the number adopts control system and acquires and control correlation test parameter；The dragging system drives the oil pump
Lubricating oil is entered the mould by the flow distributing system after temperature control fuel tank extraction by rotation, the oil pump booster stage
Quasi- bearing bore takes out described time oil tank by the oil pump oil return grade by the simulation oil return system；The air supply system with
The simulation bearing bore connection automatically adjusts air demand by the pressure value of acquisition setting.
The oil system that the present invention also provides a kind of according to including walks as follows for the test method of oil return coalignment
It is rapid:
S1: driving the oil pump to operate in setting speed by the dragging system, and booster stage is by the cunning of set temperature
Oil enters the simulation bearing bore, the cunning of each simulation bearing bore distribution setting flow by the flow distributing system
Oil is pumped back to by the lubricating oil to the oil tank after lubricating oil passes through the simulation oil return system；And
S2: the setting simulation bearing bore chamber pressure increases some described simulation axis by the oil flow distribution system
Chamber fuel feeding is held, when oil accumulation occurs in the simulation bearing bore and oil accumulation liquid level is kept not change, passes through the confession of the simulation bearing bore
Oil stream amount gain of parameter is under the conditions of pure oil, maximum lubricating oil aspiration of oil pump under the conditions of simulating oil return.
The oil system that the present invention also provides a kind of according to including walks as follows for the test method of oil return coalignment
It is rapid:
S1: driving the oil pump to operate in setting speed by the dragging system, and booster stage is by the cunning of set temperature
Oil enters the simulation bearing bore, the cunning of each simulation bearing bore distribution setting flow by the flow distributing system
Oil is pumped back to by the oil return to the oil tank after lubricating oil passes through the simulation oil return system；And
S3: by adjust it is described simulation bearing bore fuel supply flow rate and setting chamber pressure, make the simulation bearing bore parameter and
Parameter under some state of engine is consistent, and oil pump described in the gain of parameter by the simulation bearing bore is in setting chamber
Pressure, the oil system for oil return matching properties and biphase gas and liquid flow duty parameter.
Wherein, simulation bearing bore internal cavity structure snd size are consistent with engine corresponding shaft bearing chamber.
Wherein, the simulation bearing bore is equipped with observation window.
Wherein, the simulation oil return system oil-returning structure is consistent by the structure for the engine oil return component simulated.
Wherein, the air supply system has automatic feedback regulatory function, is pressed by the chamber of the acquisition simulation bearing bore anti-
Feedback adjusts the gas supply flow of the air supply system, and the simulation bearing bore is made to keep stablizing.
Of the invention can get lubricating oil system after engine completes engineering design for oil return matching test method and device
Working characteristics of the system under design point；It can be used for studying the biphase gas and liquid flow working characteristics of oil pump；It can be used for basis to start
Machine test run parameter, setting simulation bearing bore fuel supply flow rate and chamber pressure obtain the work ginseng of oil system under engine complete machine operating condition
Number.It through the invention can be system-level biphase gas and liquid flow Study of Working Characteristic, oil system for oil return matching correct, oil pump
Performance analysis provides technical support.
Detailed description of the invention
Its example embodiment is described in detail by referring to accompanying drawing, above and other feature of the invention and advantage will become
It is more obvious.
Fig. 1 is of the invention for oil return matching test method and device working principle diagram.
Wherein, the reference numerals are as follows:
1- monitoring system, 2- number adopt control system, 3- dragging system, 4- oil pump, 5- flow distributing system, and 6- is simulated back
Oil system, 7- system simulation bearing bore, 8- air supply system, 9- temperature control fuel tank, 10- auxiliary piping.
Specific embodiment
It elaborates With reference to embodiment to the present invention.
Referring to Fig. 1, oil system mainly adopts control system 2, dragging by monitoring system 1, number for oil return matching test device
It is system 3, oil pump 4, flow distributing system 5, simulation bearing bore 7, simulation oil return system 6, air supply system 8, temperature control fuel tank 9, auxiliary
Help the equal composition of pipeline 10.
Monitoring system 1 can be made of display, warning device, input equipment etc., and there is number during test to adopt for they
The functions such as the display of parameter, input, the warning alert that parameter is set.
It may include computer data actuation, lubricating oil control system, air control system for air, console that number, which adopts control system 2,
Deng.Their common operations for completing experimental rig, speed regulation, data acquisition and procession, heating and pressure control, test data save
Deng the control of test overall process.
Dragging system 3 is made of variable-frequency motor, gearbox, group section.Variable-frequency motor drives gearbox, gearbox output end
It is connect with group section, revolving speed is exported by group section outward.
Oil pump 4 is connect by group section with dragging system 3.
Flow distributing system 5 can realize that the distribution to oil flow is adjusted, and can be set and be slided according to the number of simulation bearing bore 7
The road oil stream amount Fen Ji carries out shunting allotment, each route flow meter, automatic regulating valve composition, whole system have flow adjust and
Flow measurement function.
Simulation bearing bore 7 is belt lacing cavity, and internal cavity size is consistent with engine corresponding shaft bearing chamber, is equipped with and sees
Window is examined, in addition to connecting with flow distributing system 5, simulation oil return system 6, air supply system 8, remaining position is sealing structure.
Simulate 6 simulated engine oil system oil return line of oil return system, internal diameter and space layout and engine
Oil return line is consistent, and model configuration includes but is not limited to the structures such as coarse strainer, the breather valve of oil return line installation.It simulates back
The oil return grade of oil system 6 connection simulation bearing bore 7 and oil pump 4.
Air supply system 8 is to simulate bearing bore 7 to provide clean, dry air, the gas to come from gas source by air accumulator,
Air dryer, air filter, electric control valve, fuel regulating system, gas mass flow meter, air temperature regulator and
Bearing bore 7 is simulated in the supplies such as pipeline, and fuel regulating system simulates the chamber pressure value of bearing bore 7 by acquisition, according to real-time collection value
The motorized adjustment valve regulation gas supply flow of air supply system 8 is adjusted with setting value difference automatic feedback.Whole system has temperature tune
Section and flow-controlling meter amount function.
Temperature control fuel tank 9 is lubricating oil storage container, and can be heated or cooled to set temperature to lubricating oil in oil tank.Temperature control
It include gas and oil separating plant, pressure adjustable valve inside fuel tank 9, it can be achieved that degasification to lubricating oil is drawn back, 9 chamber of temperature control fuel tank pressure dimension
Hold the setting value in pressure adjustable valve.
Auxiliary piping 10 is connected each component by the path that lubricating oil recycles, and forms a recyclable system.
The operational process of matching test device is as described below.Operator is sliding by the input test relevant parameter of monitoring system 1
Oil pump 4 rotates under the drive of dragging system 3, and lubricating oil is passed through assignment of traffic after the extraction of temperature control fuel tank 9 by 4 booster stage of oil pump
System 5 enters simulation bearing bore 7, draws back oil tank 9 by 4 oil return grade of oil pump by simulation oil return system 6.Air supply system 8 with
It simulates bearing bore 7 to connect, air demand is automatically adjusted by the pressure value of acquisition setting.Temperature control fuel tank 9 can be such that lubricating oil is maintained to set
Fixed temperature.Number, which adopts control system 2, can acquire and control correlation test parameter, such as lubricating oil in 4 revolving speed of oil pump, temperature control fuel tank 9
Temperature, the parameters such as chamber pressure, air mass flow of the fuel supply flow rate of each simulation bearing bore 7, air supply system 8 of simulating bearing bore 7.It drags
Dynamic system 3 drives the operating of oil pump 4.Simulate bearing bore 7 be arranged observation window, for observe simulation bearing bore 7 whether oil accumulation.For
Gas system 8 presses the gas supply flow of feedback regulation air supply system 8 by the chamber of acquisition simulation bearing bore 7, makes to simulate 7 chamber pressure of bearing bore
It is maintained at setting value.It is all that simulation 6 simulated engine bearing bore of oil return system exports to lubricating oil runner between 4 import of oil pump
Structure feature.Auxiliary piping 10 is used for connecting components, forms the lubricating oil circulatory system.
Oil system of the invention is illustrated for oil return matching test method with specific embodiment below.
Embodiment 1
Test parameters is inputted by monitoring system 1, number adopts the revolving speed of the control oil pump 4 of control system 2 and temperature control fuel tank 9 is slided
Oil temperature, dragging system 3 drive oil pump 4 to operate under setting speed.4 booster stage of oil pump is by lubricating oil from temperature control fuel tank 9
It is drawn through flow distributing system 5 and enters simulation bearing bore 7, the present embodiment is also possible to it by taking 3 simulation bearing bores 7 as an example
The quantity of simulation bearing bore can be rationally arranged in the simulation bearing bore of his quantity, those skilled in the art according to specific needs.It is sliding
Oil pump 4 is 3 grades of scavenge oil pumps, and those skilled in the art can also select other kinds of scavenge oil pump according to actual needs.
After lubricating oil is by simulation oil return system 6, it is pumped back to by the oil return of oil pump 4 to temperature control fuel tank 9.Air supply system 8 with
Bearing bore 7 is simulated to connect.
By setting some simulation 7 chamber pressure of bearing bore, some simulation bearing bore 7 is increased by oil flow distribution system 5
Fuel supply flow rate pass through the fuel feeding of simulation bearing bore when simulation bearing bore 7 a small amount of oil accumulations occurs and oil accumulation liquid level is kept not change
Flow parameter can be obtained under the conditions of pure oil, maximum lubricating oil aspiration of this grade of scavenge oil pump under the conditions of simulating oil return.
Embodiment 2
Test parameters is inputted by monitoring system 1, number adopts the revolving speed of the control oil pump 4 of control system 2 and temperature control fuel tank 9 is slided
Oil temperature, dragging system 3 drive oil pump 4 to operate under setting speed.4 booster stage of oil pump is by lubricating oil from temperature control fuel tank 9
It is drawn through flow distributing system 5 and enters simulation bearing bore 7, the present embodiment is also possible to it by taking 3 simulation bearing bores 7 as an example
The quantity of simulation bearing bore can be rationally arranged in the simulation bearing bore of his quantity, those skilled in the art according to specific needs.It is sliding
Oil pump 4 is 3 grades of scavenge oil pumps, and those skilled in the art can also select other kinds of scavenge oil pump according to actual needs.
After lubricating oil is by simulation oil return system 6, it is pumped back to by the oil return of oil pump 4 to temperature control fuel tank 9.Air supply system 8 with
Bearing bore 7 is simulated to connect.
By flow distributing system 5 to the fuel supply flow rate of each simulation bearing bore 7 supply setting, each simulation bearing bore 7 is set
Chamber pressure is consistent the parameter under some state of the parameters and engine such as chamber pressure, fuel supply flow rate of each simulation bearing bore 7, surely
After determining cycle operation, can be observed by observation window each simulation bearing bore 7 whether oil accumulation, it is special to obtain matching for oil return for oil system
Property.Parameter, fuel supply flow rate parameter, gas supply parameter is pressed to can get the scavenge oil pump at different levels of oil pump 4 and setting by simulation 7 chamber of bearing bore
Under the conditions of chamber pressure, the oil flow and air mass flow of extraction, i.e., entire oil system for oil return matching properties and gas-liquid two-phase
Flow duty parameter.
In embodiment 1 and implement in 2, the revolving speed of oil pump 4, respectively simulates the chamber pressure of bearing bore 7, for temperature at oil temperature
The parameters degree such as degree are adjustable, can be set according to engine design parameters, and work of the oil system under design point is obtained
Characteristic.Setup parameter can also be needed according to research oil pump, obtain the biphase gas and liquid flow working characteristics of oil pump.It can also basis
Engine test parameter is set, and the running parameter of oil system under simulated engine complete machine operating condition is obtained.
Technical solution of the present invention has been disclosed by preferred embodiment as above.Artisan will appreciate that not taking off
It changes and retouches made by the case where from the revealed scope and spirit of the present invention of appended claims of the invention, belongs to
Within scope of protection of the claims of the invention.
Claims (10)
1. a kind of oil system is for oil return matching test device, which is characterized in that the oil system is filled for oil return match test
Set include: monitoring system, number adopt control system, dragging system, oil pump, simulation oil return system, simulation bearing bore, assignment of traffic
System, air supply system, temperature control fuel tank and auxiliary piping；
Wherein the number adopts control system and acquires and control correlation test parameter；The dragging system drives the oil pump rotation
Turn, lubricating oil is entered the simulation by the flow distributing system after temperature control fuel tank extraction by the oil pump booster stage
Bearing bore takes out described time oil tank by the oil pump oil return grade by the simulation oil return system；The air supply system and institute
Simulation bearing bore connection is stated, air demand is automatically adjusted by the pressure value of acquisition setting.
2. oil system according to claim 1 is for oil return matching test device, which is characterized in that inside simulation bearing bore
Cavity body structure and size are consistent with engine corresponding shaft bearing chamber.
3. oil system according to claim 2 is for oil return matching test device, which is characterized in that the simulation bearing bore
Equipped with observation window.
4. oil system according to claim 1 is for oil return matching test device, which is characterized in that the simulation oil return system
Oil-returning structure of uniting is consistent by the structure for the engine oil return component simulated.
5. oil system according to claim 1 is for oil return matching test device, which is characterized in that the air supply system tool
Standby automatic feedback regulatory function, by air supply system described in the chamber pressure feedback regulation for acquiring simulation bearing bore for air-flow
Amount makes the simulation bearing bore keep stablizing.
6. a kind of oil system according to claim 1 is for the test method of oil return coalignment, which is characterized in that including
Following steps:
S1: the oil pump is driven to operate in setting speed by the dragging system, booster stage leads to the lubricating oil of set temperature
It crosses the flow distributing system and enters the simulation bearing bore, each simulation bearing bore distribution sets the lubricating oil of flow,
After lubricating oil passes through the simulation oil return system, it is pumped back to by the lubricating oil to the oil tank；And
S2: the setting simulation bearing bore chamber pressure increases some described simulation bearing bore by the oil flow distribution system
Fuel feeding, when oil accumulation occurs in the simulation bearing bore and oil accumulation liquid level is kept not change, by the simulation bearing bore for oil stream
Gain of parameter is measured under the conditions of pure oil, maximum lubricating oil aspiration of oil pump under the conditions of simulating oil return.
7. a kind of oil system according to claim 1 is for the test method of oil return coalignment, which is characterized in that including
Following steps:
S1: the oil pump is driven to operate in setting speed by the dragging system, booster stage leads to the lubricating oil of set temperature
It crosses the flow distributing system and enters the simulation bearing bore, each simulation bearing bore distribution sets the lubricating oil of flow,
After lubricating oil passes through the simulation oil return system, it is pumped back to by the oil return to the oil tank；And
S3: fuel supply flow rate and setting chamber pressure by adjusting the simulation bearing bore make the simulation bearing bore parameter and start
Parameter under some state of machine is consistent, and oil pump described in the gain of parameter by the simulation bearing bore is in setting chamber pressure
Under, the oil system for oil return matching properties and biphase gas and liquid flow duty parameter.
8. test method according to claim 6 or 7, which is characterized in that simulate bearing bore internal cavity size and start
Machine corresponding shaft bearing chamber is consistent.
9. test method according to claim 6 or 7, which is characterized in that the simulation oil return system oil-returning structure is by institute
The structure of the engine oil return component of simulation is consistent.
10. test method according to claim 6 or 7, which is characterized in that the air supply system has automatic feedback adjusting
Function is pressed the gas supply flow of air supply system described in feedback regulation by the chamber of the acquisition simulation bearing bore, makes the simulation axis
Chamber is held to keep stablizing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710351464.0A CN108956148B (en) | 2017-05-18 | 2017-05-18 | Oil supply and return matching test device and method for lubricating oil system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710351464.0A CN108956148B (en) | 2017-05-18 | 2017-05-18 | Oil supply and return matching test device and method for lubricating oil system |
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| Publication Number | Publication Date |
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| CN108956148A true CN108956148A (en) | 2018-12-07 |
| CN108956148B CN108956148B (en) | 2021-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710351464.0A Active CN108956148B (en) | 2017-05-18 | 2017-05-18 | Oil supply and return matching test device and method for lubricating oil system |
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Cited By (3)
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| CN110500505A (en) * | 2019-07-30 | 2019-11-26 | 南京理工大学 | A kind of Pneumatic oil pump fueller |
| CN113217364A (en) * | 2021-03-16 | 2021-08-06 | 中国航发哈尔滨东安发动机有限公司 | Plug-in type lubricating oil pump test driving system with oil return function |
| CN113790889A (en) * | 2021-08-10 | 2021-12-14 | 哈尔滨工业大学 | Engine experiment table bearing lubricating oil thermal cycle measurement system |
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| CN113790889A (en) * | 2021-08-10 | 2021-12-14 | 哈尔滨工业大学 | Engine experiment table bearing lubricating oil thermal cycle measurement system |
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| CN108956148B (en) | 2021-01-26 |
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